I have to chuckle at your cooler requirements and the conduits not laid flush on the walls. I have dealt with many coolers, many are large buildings and for us, conduit flush on the surface is not an issue, but then again, our coolers are for trees, not food for human consumption. Well, I guess nuts may be harvested much later in the trees growth.
In other words, there are always different requirements and it is always good for someone to place those somewhere in the plans for clarity. I will try to remember on my plans to refer to the plans showing the fire ratings which I think will be helpful for those who install.
